SK Hynix's Record Quarter Couldn't Save the Stock — And the Sell-Off Has a Split Personality

SK Hynix's record Q2 2026 profit, boosted by Kioxia stake sale, still missed estimates, triggering a sharp sell-off amid AI capex slowdown fears.

The arithmetic of SK Hynix's second-quarter 2026 is staggering by any measure. Revenue hit 79.32 trillion won, operating profit reached 60.54 trillion won, and net income exploded to 93.92 trillion won. That last figure, however, owes its headline-grabbing scale to a one-off event: the June sale of part of the company's stake in Kioxia, which generated an extraordinary gain of 62.17 trillion won and pushed pre-tax profit to 122.71 trillion won.

Strip that out, and the underlying business still grew impressively — revenue more than tripled year over year, operating profit more than sextupled, and first-half revenue crossed the 100 trillion won threshold for the first time in company history. The operating margin came in at 76 percent, according to the company's own investor presentation.

None of it was enough. When the numbers landed on July 29, the market's reaction was swift and brutal: New York-listed shares fell 9.6 percent in a single session, and the stock has been nursing the wounds ever since.

A Miss Is a Miss, Even at Record Levels

The problem wasn't the results themselves but the bar that had been set. Analysts had penciled in consensus revenue of 84 trillion won and operating profit of 64 trillion won, per CNBC — SK Hynix came up short on both counts. Reuters characterized the record figures as failing to meet investor expectations, with concerns about slowing AI capital expenditure growth and cyclical oversupply risks in the memory chip market adding to the gloom.

It's a familiar pattern for cyclical semiconductor names: even historic bests don't move the needle when the market had priced in more. The fear of an AI-driven demand cooldown for memory chips, it seems, weighs more heavily on investors than the sheer size of the reported profit.

Two weeks after the earnings release, the stock trades at 1,425,000 won in Seoul — roughly 52.29 percent below its 52-week high. Over the past 30 days alone, the shares have shed 22.76 percent. Yet there's a curious divergence: while the Korea-listed shares remain under pressure, the New York-listed ADRs have recently clawed back some ground, closing at $143.54 on August 7 after opening at $138.99 — a 3.17 percent daily gain. That transatlantic gap is itself a telling sign of investor unease.

Institutional Selling Meets a Split Analyst Ranks

The sell-off has been amplified by heavy selling from Korea's most active institutional traders. Top investors at Mirae Asset have been dumping SK Hynix shares in size, alongside positions in Samsung Electronics — even as Mirae Asset's own analysts call the decline a buying opportunity, with a price target of 2.8 million won.

Elsewhere, the analyst community is visibly fractured. Kiwoom Securities cut its target to 2.1 million won and slashed its 2027 operating profit forecast by 15.6 percent to 221 trillion won. Other houses sit somewhere in between, with the overall target range spanning 2.7 million to 4.7 million won — a roughly 2 million won gap that underscores just how uncertain the Street is about future memory chip pricing.

The picture is equally split at the Nasdaq, where SK Hynix debuted American Depositary Receipts in early July. The offering was seven times oversubscribed, raised around $26.5 billion, and closed its first trading day up 13 percent. Since then, the ADRs have more than halved, trading in the $135–$140 range against an issue price of $149. Some individual analysts still see upside to as much as $320 — implying potential gains of over 160 percent. The Motley Fool, meanwhile, has crowned SK Hynix the strongest stock in the AI memory segment, ahead of Micron and SanDisk, citing a 56.4 percent market share in high-bandwidth memory (HBM) chips.

A Two-Pronged Strategic Offensive

None of the market turbulence has deterred SK Hynix from pressing ahead with its expansion plans. The company intends to raise 2026 capital expenditures by roughly 50 percent to at least 45 trillion won, as reported by Bloomberg — a clear bet that the AI-driven demand for memory chips will persist over the medium term, even if doubts about the boom's continuity are mounting in the near term.

That investment program, approved at around $38 billion for HBM manufacturing capacity in South Korea, is complemented by a decisive move in the NAND segment. Through a Bain Capital-controlled investment vehicle, SK Hynix is set to become the de facto largest shareholder of Japanese memory maker Kioxia. The vehicle holds 14.19 percent, while Toshiba has trimmed its stake to 14.12 percent. The arrangement stems from a 2018 investment of roughly 4 trillion won in convertible bonds, which now gives SK Hynix control over most of the vehicle's voting rights.

Kioxia itself has flagged a potential conflict of interest, and a contractual agreement bars SK Hynix from holding more than 15 percent of voting rights without consent until 2028. Combined with its own NAND business, however, SK Hynix's effective market share would surpass that of Samsung.

A Valuation Gap That Hinges on 2028

For all the strategic ambition, the stock remains conspicuously cheap on a valuation basis. The price-to-earnings ratio sits at roughly 6.4 — a fraction of the 49.5-to-60 range typical of comparable memory makers. Whether that discount narrows will likely depend on supply dynamics from 2028 onward, when industry estimates suggest the current wave of capacity expansion across major manufacturers begins translating into additional output.

For now, investors are left weighing the scale of SK Hynix's investment bet and its still-robust operating profitability against genuine questions about the durability of the AI spending cycle. The record quarter is in the books; the market's verdict on what comes next is still very much in play.